Genus Culex. 421 
considerably; the ornamentation and coloration also seem to 
vary. 
Variety A .—No trace of banding on the last four segments 
of the abdomen, and with scattered yellow scales on the last few 
segments. More or less of a median dark line showing on the 
thorax ; remainder normal. (Dr. Bancroft, Healesville, Victoria. 
106, 21. 10. 1900.) 
There is some resemblance to C. rubitliorax , Macq., but the 
head ornamentation differs as well as the wing venation, and the 
presence of three instead of four rows of black bristles on the 
thorax will at once separate the two species. 
46. Culex flavifrons. Skuse. 
(Proc. Linn. Soc. N. S. Wales, vol. iff. p. 1735 (1889).) 
Ground colour of thorax red-brown, densely gold-scaled ; pleurae red- 
brown, with several small white-scaled spots ; scutellum densely gold 
scaled; metanotum light red-brown. Abdomen violet-black scaled, 
narrowly white banded in front, densely fringed with golden hairs; 
venter white scaled.' Femora dark violet above at the apex, thickly 
powdered with white scales, beneath pale yellowish ; genua bright yellow ; 
tibiae and tarsi dark violet; tibiae and metatarsi somewhat whitish 
beneath; all tarsal joints white ringed at the base, but indistinctly so 
in the fore and mid legs; hind tibiae one-fifth longer than metatarsi. 
Wings densely clothed with violet-brown scales, sparingly intermixed 
with yellowish scales. 
Length. —4*56 in $ ; 5*08 in d. 
Habitat. —Blue Mountains, N.S.W. (Masters); Victoria Park, Bris¬ 
bane (Tryon). 
Time of appearance. —November to January. 
Note. —This species seems to differ very slightly from 
C. occidentalism which has been received from Victoria. The 
only apparent differences I can detect from actual speciinens of 
G. occidentalis and the description of C. flavifrons are that in the 
latter the wings have some yellow scales, and that the relative 
length of the hind tibiae and metatarsi differs. 
47. Culex maculiventris. Macquart. 
(Dipt, Exotic. Supp. i. p. 7.) 
“Thorax black, with rufous tomentum ; abdomen black, with both 
anterior and posterior borders of the segments, and a dorsal line of a 
